/*
 * Licensed to Elasticsearch under one or more contributor
 * license agreements. See the NOTICE file distributed with
 * this work for additional information regarding copyright
 * ownership. Elasticsearch licenses this file to you under
 * the Apache License, Version 2.0 (the "License"); you may
 * not use this file except in compliance with the License.
 * You may obtain a copy of the License at
 *
 *    http://www.apache.org/licenses/LICENSE-2.0
 *
 * Unless required by applicable law or agreed to in writing,
 * software distributed under the License is distributed on an
 * "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
 * KIND, either express or implied.  See the License for the
 * specific language governing permissions and limitations
 * under the License.
 */

package org.elasticsearch.river.cluster;

/**
 *
 */
public class RiverClusterChangedEvent {

    private final String source;

    private final RiverClusterState previousState;

    private final RiverClusterState state;

    public RiverClusterChangedEvent(String source, RiverClusterState state, RiverClusterState previousState) {
        this.source = source;
        this.state = state;
        this.previousState = previousState;
    }

    /**
     * The source that caused this cluster event to be raised.
     */
    public String source() {
        return this.source;
    }

    public RiverClusterState state() {
        return this.state;
    }

    public RiverClusterState previousState() {
        return this.previousState;
    }
}
